Envelop



G. A. SANBURN.

ENVELOP.

APPLICATION FILED IAN. 3I. I92I.

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@Hotmail UNITED STATES PATENT OFFICE.

GEORGE A. SANBORN, 0F FOX LAKE, WISCONSIN.

ENVELOP.

Application filed January 31, 1921.

To ZZ lwhom it may concern Be it known that l, Gnome il. SANeoaN, a citizen of the United States, residing at Fox Lake, in the county of Dodge and State of lVisconsin, have invented certain new and useful Improvements in Envelops7 of which the following is a specification.

rllhis invention relates to envelops and has as an object the provision of an envelop that can be cut open and resealed without the application of more adhesive.

Illustrative embodiments of this invention are shown in the accompanying drawings, in which- Figures 1, 3, 6 and 8 are plan views, each partly broken away, showing different forms of the invention, and each having the form of the blank from which the envelop is made shown in dotted lines;

Fig. 2 is a section on line 2 2 of Fig. 1;

Fig. l is a section on line -i of Fig. 3;

Fig. 5 is a detail perspective view showing the arrangement of a portion of the gumnied and factory sealed surfaces of the form of Fig. 3;

Fig. 7 is a detail perspective view showing the arrangement of a portion of the gummed and factory sealed surfaces of the form of Fig. 6, and

Fig. 9 is a sect-ion on line 9-9 of Fig. S.

The main feature of the invention is the provision of a flap formed with two thicknesses of material each having adhesive on its inner surface and a fold at the normally free edge which flap may after initial sealing either by the first user or at the factory, be cut on the fold and may then be resealed by the use of the inner and initially protected adhesive.

The form of this invention shown in Figs.

1 and 2 comprises the front 10, flaps 11, 12, which when folded and sealed form the back of the envelop, thus providing a pocket, and a double flap 14 comprising the parts 15 and 16 which, when gummed at 1.7 and 1S, folded upon itself as at 19, and again at 19, may be sealed either atthe factory or by the user, initially utilizing the gum at 1S. lf after the first use the sealed envelop be opened by cutting the fold 19. it may be again sealed. using the gum at 17 and causing the portion 15 to adhere to the severed portion 1G which was left adhering to the body of the envelop. The material of the flap may be perforated upon the line of the fold 19 if desiret.. as shown at 50, to provide for ease of opening.

Patented `Nov. 2,?,1921

Serial No. 441,374.

The gum at 1T should not extend beyond the portion 1G of the flap when the latter is folded, thus avoiding the possibility of both portions of the flap being sealed by the first user. Either the iiap 123 or the port-ion 1G may be sealed at the factory, leaving the other open to be sealed by the initial user with the same result. A window 20 is indicated since the invention is more useful with that form of envelop for easy change of address.

In the form of Figs. 23, il and 5 the front 21 is provided with the window Q2 and the back 23 is made integral with the flap 2a. The back 23 und flap are cut into a blank as shown in dotted lines in Fig. 3. folded at 25. and the doubled material is thus folded at 2G. Prior to folding the material the blank will be gummed at 2T and at 28. Before sealing the flap Qlithe end flaps 29 and 80 must be folded and sealed. In this form of the invention the flap 31 must be left open to be sealed by the first user since the flap 2% even though unsealed will not give access to the envelop until it has been cut on the fold 25. Therefore the flap 24 will be factory sealed, employing the adhesive at 28, leaving that at 27 to be used by the second user of this envelop.

The form of Figs. 6 and 7 has the back 32 formed of a single portion of material substantially equal in size to the front of the envelop. This form is closed at the ends by the small factory sealed flaps 33 and 34. The flap is of the same nature as that at 15 in the form of Figs. 1 and 2. rlhe gum at 36 will be used by the first user. The recipient will cut the flap on the fold 37 and the second user will use the gum at 38 to reseal the envelop.

The forni of Figs. 8 and 9 is the equivalent of the form of Figs. 3 to 5, differing from that form by being formed for end opening instead of side opening. In Figs. S and 9 the back 39 is integral with the flap Gand the front 451. being folded at t2 and the doubled material folded at For the reason stated in connection with the form of Figs. 3 to 5 the flap L10 must be factory sealed. using the gum on the portion ai of flap 0, and leaving the gum on portion d5 to be used by the second user of the envelop.

rlhe invention is capable of many uses. Among others. its use with documents which are to be returned to the sender may be mentioned. For instance an envelop embodying the invention and provided With a. Window in'fiy have a bill payable inelosed therein Wit-l1 the neme sind address of t e debtor exposed. The envelop may be opened by the recipient, the bill refolded to show the naine and address of the creditor and inelosed with the cheek, the envelop reseeled, stamped and mailed.

Many minor changes may be mede in the physical embodiment of the invention Without departing` from its spirit.

Having thus described my invention what I claim as new and desire to seeure by Letters Patent is:

l. An envelop comprising, in combinetion7 a pocket, e flap formed of two thicknesses of material integral at the free edge of the flap, and adhesive on each of the surfaces of said materiel which fece toward the body \vhen the flap is in operative position.

2. An envelop comprising, in eombination, t front and L beek providing e pocket therebetween, a. flap integral With seid front, seid liep folded upon itself at its free edge end adhesive covered areas on seid flap on the surfaces facing toward said pocket when the flap is folded and closed.

3. An envelop comprising, in combinetion, e front and beek providing a pocket therebetween, e flap integral With both seid front and said beek, said flap folded upon itself at its initially free edge, adhesive eovered areas on said flap on the 'surfaces facing toward said pocket when the flap is folded und closed, seid liep being factory sealed by means of one of seid areas, and a flap adapted to be sealed by the first user.

In testimony whereof I hereunto eiiix my signature.

GEORGE A. SANBORN. 

